Process for the production of high purity melamine from urea

摘要

A method for purifying melamine comprising impurities like ureidomelamine, oxotriazines, melam, melem, comprises the step of putting into contact at a temperature comprised between 340 DEG C and 410 DEG C and at a pressure comprised between 8 and 17 MPa a melamine melt with a bed of a catalyst thus obtaining melamine with a purity of at least 99%.